The Different Forms of Flowers on Plants of the Same Species

by Charles Darwin

Androsace vitalliana.

Anthers, size of, in different forms. contabescent.

Arachis.

Arnebia hispidissima.

Ascherson, Dr., on Salvia cleistogama. Juncus bufonius. Leersia oryzoides.

Asclepias.

Ash, the common.

Asperula scoparia.

Axell on Primula stricta.

Babington, Professor, on Primula elatior. Stellaria graminea.